Getting child table size (number of rows)

[ME_Technology]

The solution is to use the $.each()function as described here:

Calculate each product total discount amount in sales order item

I wrote the following script to calculate the total discount amount in sales order item custom script: doctype: Sales Order Item script: frappe.ui.form.on(“Sales Order Item”, { validate: function(frm) { disprice = 0 disprice += flt(frm.doc.price_list_rate) * flt(frm.doc.discount_percentage) / 100 * flt(frm.doc.qty); frm.doc.disprice = disprice; } }) custom field: document: Sales Order Item Label: disprice Fieldname: disprice Insert After: Rate Field Type: Currency The disprice f…